package com.atguigu.gulimall.product.service.impl;

import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.utils.R;
import com.atguigu.gulimall.product.config.MyThreadConfig;
import com.atguigu.gulimall.product.entity.SkuImagesEntity;
import com.atguigu.gulimall.product.entity.SpuInfoDescEntity;
import com.atguigu.gulimall.product.fegin.SeckillFeignService;
import com.atguigu.gulimall.product.service.*;
import com.atguigu.gulimall.product.vo.SecKillInfoVo;
import com.atguigu.gulimall.product.vo.SkuItemSaleAttrVo;
import com.atguigu.gulimall.product.vo.SkuItemVo;
import com.atguigu.gulimall.product.vo.SpuItemAttrGroupVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ThreadPoolExecutor;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.SkuInfoDao;
import com.atguigu.gulimall.product.entity.SkuInfoEntity;
import org.springframework.util.StringUtils;


@Service("skuInfoService")
public class SkuInfoServiceImpl extends ServiceImpl<SkuInfoDao, SkuInfoEntity> implements SkuInfoService {

    @Autowired
    SkuImagesService skuImagesService;

    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    AttrGroupService attrGroupService;
    @Autowired
    SpuInfoDescService spuInfoDescService;

    @Autowired
    ThreadPoolExecutor executor;

    @Autowired
    SeckillFeignService seckillFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SkuInfoEntity> page = this.page(
                new Query<SkuInfoEntity>().getPage(params),
                new QueryWrapper<SkuInfoEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public void saveSkuInfo(SkuInfoEntity skuInfoEntity) {
        this.baseMapper.insert(skuInfoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        //key: '华为',//检索关键字
        //catelogId: 0,
        //brandId: 0,
        //min: 0,
        //max: 0
        QueryWrapper<SkuInfoEntity> queryWrapper = new QueryWrapper<>();
        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)){
            queryWrapper.and((w)->{
                w.eq("sku_id",key).or().like("sku_name",key);
            });
        }

        String catelogId = (String) params.get("catelogId");
        if(!StringUtils.isEmpty(catelogId)&&!"0".equalsIgnoreCase(catelogId)){
            queryWrapper.eq("catalog_id",catelogId);
        }

        String brandId = (String) params.get("brandId");
        if(!StringUtils.isEmpty(brandId)&&!"0".equalsIgnoreCase(catelogId)){
            queryWrapper.eq("brand_id",brandId);
        }

        String min = (String) params.get("min");
        if(!StringUtils.isEmpty(min)){
            queryWrapper.ge("price",min);
        }

        String max = (String) params.get("max");
        if(!StringUtils.isEmpty(max)  ){
            try{
                BigDecimal bigDecimal = new BigDecimal(max);

                if(bigDecimal.compareTo(new BigDecimal("0"))==1){
                    queryWrapper.le("price",max);
                }
            }catch (Exception e){

            }

        }

        IPage<SkuInfoEntity> page = this.page(
                new Query<SkuInfoEntity>().getPage(params),
                queryWrapper
        );

        return new PageUtils(page);
    }

    @Override
    public List<SkuInfoEntity> getSkuBySpuId(Long spuId) {
        return list(new QueryWrapper<SkuInfoEntity>().eq("spu_Id",spuId));
    }

    @Override
    public SkuItemVo item(Long skuId) throws ExecutionException, InterruptedException {
        SkuItemVo skuItemVo = new SkuItemVo();

        // 1 sku 基本信息获取
        CompletableFuture<SkuInfoEntity> infoFuture = CompletableFuture.supplyAsync(() -> {
            SkuInfoEntity skuInfoEntity = getById(skuId);
            skuItemVo.setInfo(skuInfoEntity);
            return skuInfoEntity;
        }, executor);

        CompletableFuture<Void> voidCompletableFuture = infoFuture.thenAcceptAsync((item) -> {
            // 3 获取spu销售属性
            List<SkuItemSaleAttrVo> skuItemSaleAttrVos = skuSaleAttrValueService.getSaleAttrsBySpuId(item.getSpuId());
            skuItemVo.setSaleAttrs(skuItemSaleAttrVos);
        });

        CompletableFuture<Void> voidCompletableFuture1 = infoFuture.thenAcceptAsync((item) -> {
            // 4 获取spu 介绍
            SpuInfoDescEntity byId = spuInfoDescService.getById(item.getSpuId());
            skuItemVo.setDesp(byId);
        });

        CompletableFuture<Void> voidCompletableFuture2 = infoFuture.thenAcceptAsync((item) -> {
            // 5 获取spu的规格参数信息
            List<SpuItemAttrGroupVo> attrGroupVos = attrGroupService.getAttrGroupWithAttrsBySpuId(item.getCatalogId(), item.getSpuId());
            skuItemVo.setGroupAttrs(attrGroupVos);
        });


        //6、查询当前sku是否参与秒杀优惠
        CompletableFuture<Void> voidCompletableFuture4 = CompletableFuture.runAsync(() -> {
            R r = seckillFeignService.getSkuSeckillInfo(skuId);
            if (r.getCode() == 0) {
                SecKillInfoVo seckillInfoVo = r.getData(new TypeReference<SecKillInfoVo>() {
                });
                skuItemVo.setSeckillInfo(seckillInfoVo);
            }

        }, executor);

        CompletableFuture<Void> voidCompletableFuture3 = CompletableFuture.runAsync(() -> {
            // 2 sku 图片信息
            List<SkuImagesEntity> skuImagesEntities = skuImagesService.getImageBySkuId(skuId);
            skuItemVo.setImages(skuImagesEntities);
        });

        CompletableFuture.allOf(voidCompletableFuture,voidCompletableFuture1,voidCompletableFuture2,voidCompletableFuture3,voidCompletableFuture4).get();

        System.out.println(skuItemVo.toString());
        return skuItemVo;
    }



}